Switch lock



June, R2, 11923. 11,458,432

.1.l r1d MOORE SWITCH Lock i i ,i Filed FebQza. 192s 2 Sheets-Sheet 1 kim `v w l 4 "nvm/70H [l JTL. Moore.

' A TTOR/VEYS June 12,1923. 145mg@ J. D. MOORE SWITCH LOCK Filed Feb.28. 1923 2 Sheets-Sheet 2 Patented June l2, 192.3.

n n rr srars PATENT FHQE,

JOSEPH D. MOORE, OF JACKSONVILLE, FLORIDA, ASSIGNOB 0F ONE-HALF TO JAMESS. PETERSON, OF JACKSONVILLE, FLORIDA.

SWITCH LOCK.

Application filed February 28, 1923.l Serial No. 621,807.

T0 all whom t may concern:

Be it known that I, JOSEPH D. Moons, aA citizen of the United States,and a resident of Jacksonville, in the county of Duval and State ofFlorida, have 'invented certain new and useful lmprovements inSwitchLocks, of which the following is a specification.v

My present invention relates generally to switch locks and moreparticularly to switch locks of the type described and claimed in myPatent 1,098,958 dated June 2nd, 1914, with respect to which myapplication covers certain improvements whosefobject in the firstinstance is to permit of the release of the lock by virtue of theinitial movement of the switch throwing lever, and at the` same timeprovide such connections that the switch stand and the switch throwingparts will be so divorced from the switch that the latter will beunaffected by breakage of the switch stand and its support either inwhole or in part.

A furtherobject is the provision of certain improvements in the mainswitch slide plate as well as in the 'shape of the lock releasing leverwhereby to avoid operating dis- 'advantages towhic'h my formerconstruction vention as in Figure 1,

was susceptible.

Yln the accompanying drawings illustrating my present invention landforming a part of this application,

Figure 1 is a perspective view illustratingA slide beneath the rail 11and switch point 13 the practical application of my invention,

Figure 2 is a perspective view of thev r switch throwing shaft as wellas thelock releasing upright and portions ofconnectio'ns of these parts,

Figure 3' is a detail perspective view of the slide plate and the partscarried thereby,

Figure 4 is a transverse vertical section showing the practica-lapplication of my inkFigure 5 is a vertical sectional view through theswitch stand, andV Figure 6 is a detail perspective view of certainparts of the switch stand and switch throwing mechanism. v

Referring now kto these ligures I have and movable switch points 12 and13, the latter of which are connected by tie bars 14 and are shiftableat theirl extremitiesupon slide plates 15 and 16, thelatter known 'as aNo. 1 slide plate.v These slide plates are securely fastened upon one ofa pair of ties plate 16 has a downwardly offset shelf 24 at Y one side,which depends between the ties 17 and to which is secured one end of anup wardly and outwardly inclined leaf spring 25 having beneath its outerupper end a coil spring 26, this free end of the spring 25 being thussupplemented by the spring 26 bearing upwardly beneath the free outerend of the lock plate 27. This lock plate whose outer shouldered portion23 is adapted for engagement with the outer edge of the base of rail 11,is connected in vertically movable or swingable relation at its innerend to the extremity of the switch point 13 by virtue of verticallspring bolts 29 so that when the switch point 13 is shifted outwardlyagainst the inner surface of rail 11, the lock plate will be pressedvertically into locking position and securely hold the switch pointagainst the rail until the outer shouldered portion 28 of the lock plateis pressed dow11- wardly to released position where it may is shiftedinwardly away from the rail l1. In accordance with `my presentyimprovements the free side edge and one end of the downwardly offsetshelf 24 of the slide plate 16 are provided with upstanding walls 30 and31, the former beingcut away upon an incline corresponding to theincline ofthe leaf spring 25 and the latter upstanding` at the free endof the leaf spring so that this leaf spring is thus/boxed to the extentof preventing dirt and debris from getting beneath the leaf spring andobstructing its free yielding movement in a. downward direction. lnfurther accordance lwith my; present invention the slide plate 16 has atits outer end an extended tongue 32 from which a stud 33 projectslaterally to form the fulcrum of the lock releasing lever 34, the latterbeing in the nature of a bell crank whose inwardly projecting arrn isadapted to bear upon the free end of the lock plate 27 when' the parts'are in the locked position and i le' -whoseouter depending arm-receivesone end of a cnn'eeting rod 35. This cehnecting rod v is preferably intwo sections connected by a rocker arm 38.

`turnbuclrle i 36 and extending',through a guide 37, its opposite endbeing connected toone yend of a rocker arm 38 from which, intermediateits ends, a foot plateBQ Apro jects beneath a portion ,of the switch.stand 19 as plainly seen by reference tev Figures 2 y and 4.

The .free of the lock releasing bell crank 34 adapted as before statedto restV upon the shouldered outer portion 28 of the lock plate 27sovth'at when thev depending arin ofxthevb'ell cranl'ris y'shiftedoutwardly the said lockA plate be depressed to lockedposition,- ispreferably provided atv its vfree endpwith alreduoed rail engaging nose40adapted toeng'age the base of the rail 11 when'the lock 'plate isdepressed just sition,`in `order to prevent roekingmovement ofthe bellcrank lever to such anextent thatits inwardly Aprojecting arm mightproject into the path of outward movement' ofthelloclr plate 27 when thelatter is`subseqii/eifi'tlyv "shifted outwardly toward the lockedposition'. Y

Referring .now to Figures 2, 4 and `5 particularly it will be `notedthat the switch 'actfuatingy lever 41 is .fulcrurne'd intermediate itsendsas lat 42 to thevupp'er squared por` vtion ofthe uprightfshaft 2Oand "isV pi-votally connected at 43 between its handle and its fulcrum42, to the upper ends'of arms 44 upfstanding from the verticallyshiftable cap pla-te 45 of the switchgstand 19, which arms 'arepivotally yconnected aty their lower ends v4to the cap plate. Beyond itsfulcruin 42'the lever4l provided with a presser plate 46 above theupper'end of awvfertical'lyishiftable presser rod 47 upsitanding throughthe switch stand 19 with its lower end disposed above and movabledownwardly into engagement with lthey foot piece '39 of the rlphe upperportion of the presser rodi'47 projects vertically throughy an varcuate@slot 48 of the cap p`late`45,vthe latter of which in its normal loweredposition rests upon Vthe upper surface of the switch 'stand`19 "and 'isprevented from rotation and -in turn holds the shaft 2O against rotationby virtue Yeo of anupstanding squared a'nd reduced boss Y49 of theswitchnstand and a `squared socket 50 in the lower surface ofthe capLplate into which the b o'ss extends-'when the cap A'plate i'sloweredfo-nto the "switch-stand. While I have` shown no y.particularform 'of locking means, it will be -understoodfthat in accord-l "ancewith'the usu'al :practice `'the switch -tlirowing ylever-41 will belocked 'in Eits Alow- :ered position'to the switch standf19 by any'ofthe well lnown 'locking means lfor 4this `purpose andtlia-twhen-fthusnloclred in its position aswfshown in 1F igure 4` above thelowered position the switch point v13 isi lagainst the rail 11"audllocked iin-'contact therewith ybyl the locking plate 27, the presser rod47-being at `this tirnegin its upper foot piece 39 of the rocker arm 38so that'v should the switch stand, with the parts in this position, bepartly or wholly demolished the locking plate k2,7l will remain inlocked position holding the switch lpoint 1 3 against the rail 11.VFurthermore in this, the locked position 'of 'the parts, the presserrod` 47 is positively held from lowering movementby virtue of a lockingbar 51 `pivo'tally connected atene end' as at 52 to onev side of the'switch throwing lever 41 andy 'extending through :the 4guide bracket 53upstanding from the cap V'plate 45, the presser rod 47 having an`annular groove 54vin`to Vwhich the free end 'of the locking bar 51extendsfwhen the switch throwing lever 41is in its lweredl position.

VhenV it is that is shift the switehpoints 12 and 13 so `that the formerwill engage rail l0 and the latter will move away from 'rail 11, theswitch throwing lever 41 must rstbe 'raised in 'order to lift the capplate 45 free of the switch ystand boss 49 Iand during this move-A mentthe locking bar 51 is withdrawn fromY engagement with the presse-r rod47 andthe presser plate 46 of lever`51 moves 'downwardly rinto,engagement with the upper rend of the p-resser rod 47 So'lthat ,thelatter will be lowered and upon engagement at itsy lower Eend with thefoot piece .'39 'will rock the rocker 'arm 38 and; in this way shift theconnecting' lrod 35 in thefdirection of its lengths@ `as to force theinwardly ,projecting horizontal. ar1n..34of the be'l'lv crank downwardlyinto engagement `with the desired vt'o y'throw fthe switch,

shouldered lend 28 of the look plate 27 and inV turn flo-wer said lock:plate to released position."V This action of' the parts takes .placekvdurying the up-'ward swinging movement'of 'the switch lever 41 and iscomplete when said lever is elevazted'fto fthe position shown in Figures5 and .6 wherein thelca'p plate 45`is above the bossl 49 vof the switchstand l and fthe shaft 2O is thus free for rotatable smovement byswinging the switch throwingilever 41. This swinging movement vof thelever through approximately ninetyfdegrees :is suflicient. through ltheshaft 20 and lits lower crank arm 22, tofthrow Ethe ,-switch'ipointsagainst rail 10 and away from rail 11 'by virtue of the connecting Arod23 and its engagement with the extended yportion `of the tiebar 14. f, f

vVVhen'the parts iarerrestoredfto the locked position-shown in Figure4and the .lever 41 4is flowered, :vertical finovement lof thelock plate:2.7 to locked pvositionunder tension -o'ffthe 'springs 25`and -26restoresthepres'ser lli rod 47 to its upper position where as abovestated it is securely held against accidental lowering movement byvirtue of the locking bar 5l and the annular groove 54.

I claim:

1. ln al switch lock of the character described, a vertically swingablelockv plate, a slide plate for a switch point having a downwardly offsetshelf at one side beneath the clock plate, a flat spring inclined alongsaid plate and secured at one end thereto, having its other end hearingupwardly against the lock plate, said shelf having an upstanding sidewall along the outer side of said spring member and having an upstandingend wall across the free end of the spring for the purpose described.

2. ln a switch lock, a vertically swingable lock plate, a slide platefor a switch point having a downwardly oset shelf, spring means on thesaid shelf bearing upwardly against the said lock plate, said shelfhaving walls along one side and one end to prevent the accumulation ofdirt beneath the said spring means, a lock releasing lever having oneend bearing on the lock plate, and an extension formed on the said slideplate, having a bearing member for the said releasing lever.

3. In a switch lock, the combination with a rail and a switch pointshiftable into and out of engagement with t-he rail, of a verticallyswingable lock platecarried by the switch point and having a shoulderedrail engaging end, spring means for shifting said plate upwardly intoengagement-,with the rail, and means for depressing said lock plate toreleased position including a lever one end of which is shiftabledownwardly upon the shouldered end of the lock plate, said lever havingan extended lip at its said free end engageable in its lower activeposition with the base of said rail to prevent downward movement of thelever into the path of return movement of the lock plate.

4. The combination with a switch stand and switch throwing connectionsincluding a main lever on the stand, of a switch lock, and releasingconnections for the lock including elements, certain of which elementsare independent of the switch stand and normally Iextend adjacent to andfree of connect-ion therewith andcertain of which elements are supportedby the stand and movable upon actuation of said leverlinto electiveengagement with the first named element. i f

5. In a switch lock, the combination with a switch stand and a switchthrowing lever, of a presser rod upstanding through said stand, meanscarried by the lever for depressing said rod when the lever is raised,an automatically engageable lock plate, and lock releasing connectionsincluding a member normally positioned below and free of connection withsaid rod and with which the lower end of the rod is engageable.

6. In a switch lock, the combination with a switch stand and a switchthrowing lever, of a presser rod upstanding through said stand, meanscarried by the lever ior depressing said rod when the lever is raised,an automatically engageable lock plate, lock releasing connectionsincluding a member with which the lower end of the rod is engageable,and means carried by said switch throwing lever and said presser rod andengageable when the lever is in its normal lowered position, adapted tolock the rod. against vertical movement.

JOSEPH D. MOORE.

